Tire-chain tightener.



w. L HARP. TIRE CHAIN TIGHTENE'R.

APPLICATION FILED SEPT-25, I9I6.

L2H?" I Patented A 1-.3,1917.

' WILLIAM I. HARP {Be it known that I, WILLIAM I..HARP,

mien-errant 'rreriannnn.

Thrill whom it mag c oncem'l a citizen of the United States, residing at Galax', in the county of Grayson and State of Virginia, have invented certain new and useful Improvements in Tire-Chain'llighteners; and I do declare the followin to be a .full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains to make and -use the same... .My invention aims to provide "a simple and inexpensive tightener for automobile tire chains and to this end I employ a plurality .of radially extending. chains to be connected at their outer ends with the side .:members of the tire chains, and provide a spiral formed of a single. rod for pulling fsaid radial chains inwardly and holding them under tension..

Inthe accompanying drawings: 1

" the. tightener applied to a tirechain;

. Fig. '2 is ,a perspective view'of the tight 3 i 25- i ener shown in Fig.1; I

Fig." 3 is' a perspective view of another form'of'spiral. v p a In Figs. "1 and-'2 the numeral-1 designates as shown,., beingeach'formed of a' singl'e members of a tire chain. It is to the coils or eyes 5 that the outer ends of the chains 2 are connected and said coils or eyes are located 2 nearer to one end of the hooks?) than to'the other end thereof, thus rendering theidevice applicable to tirechains of different sizes. The outer end of the spiral 4 is bent upon itself to form an eye 7 by means of Which an anchor hook 8 is pivoted to said spiral 'for holding theflatter after once adjusted to draw the-chains 2 inwardly. -The.inner end. of; spiral'fl is bent laterally at 9 and 1 serves as a'stop to hold anS-link 10 against nioyement from this end of said spiral, said Specification of Letters Patent.

coming detached as will be clear from Fig.

2, the link in. question having its oppositev or ennnx, VIRGINIA; nssrenon or ONE-HALF TO CHARLES r.

wanes; or (realism, v'naemm. Y

Patented A ne, 1917. Application filed September 25,1916. Serial No.'122,095. p

ends slid'ablymounted on adjacent convolu-..

tions of the spiral. v In use, the hooks 3 will be engaged with the outer side member 11 of a tire chain 1.2, the chains 2 being-then on the outer.convo- 'lution of the spiral4. The spiral will now.

be rotated so as to cause the chains in uestion to be drawn inwardly as shown in ig. l and this having been done, thehook 8 will -be engaged with one of the chains2 to hold the spiral againstreta'ograde movement.

-In Fig. 3 the spiral His bent laterally at I its inner and outer-ends as shown respectively' at-il and 7 and. an ;$-link 10 is em-- ployed as in the form prev ously described,

the hook 8 being eliminated in this form of the invention since the convolutions of 4 are formed of a plurality of straight por- Figure 1 is a side elevation of one type "0 tions' l3 which 'join each other at obtuse angles 14:, .the latter constituting seats in Which the inner ends'of the "chains 2 are received, said seats serving to'prevent rota tionof, the ened. I Either type of the invention Will be eflicient-anddiirable and maybe inexpensively spiral 4* after .it has been tightmanufactured and marketedy For these] reasons, the features of construction shown constitute the preferred forms of the device but it is to. be ;understood that. within the scope'of the invention as claimed, numerouschanges may be made. without sacrificing theprincipal advantages thereof. 'llclaimr IL'A tire chain tightener comprising a plurality of radial members for engagement 'attheir outer ends with-the side of said chain, and a-spira-l formed of a "single resilient rod passing through the inner ends Wardly and holding them under tension,

plurality of radial members for engagement at their outer ends with the side; of said chain, a spiral formed of a single resilient of said radial-members to be turned in one j I direction for drawing said members inrod passing through the inner ends of said fordrawing said members inwardly and holding them under. tension, a. link having IildlillmBIIllOGlI'SftO be turned in one direction" a its ends slidably mounted on two adjacent my hand in the presence of two subscribing convolutions of the spiral, mfld stop means witnesses.

on both ends of said spiral or preventin said link from moving therefrom, said lini WILLIAM I. HARP. serving to prevent the radial members from Witnesses:

becoming detached'from the spiral. JOEL HARMAN,

In testimony whereof I have hereunto set S. E. WILKINSON.

copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Wilmington, D. 0." 

